Zinc sulphide nanoparticles for photochemical reactions: reduction of carbon dioxide and oxidation of phenol

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F11%3A86080960" target="_blank" >RIV/61989100:27360/11:86080960 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27350/11:86080960 RIV/61989100:27730/11:86080960

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Zinc sulphide nanoparticles for photochemical reactions: reduction of carbon dioxide and oxidation of phenol

Popis výsledku v původním jazyce

ZnS nanoparticles were prepared and deposited on montmorillonite (MMT) in the presence of cetyltrimethylammonium (CTA). Transmission electron microscopy (TEM) proved the formation of nanoparticles with diameters about 5 nm. The nanoparticles were deposited on MMT forming the ZnS-MMT-CTA nanocomposite that was used for the photochemical reactions of CO2 and phenol under UV light. The commercial TiO2 photocatalyst was used for comparison. The photoreduction of CO2 provided a considerably high efficiency that exceeded 5-6 fold the results with TiO2. The main reaction products were hydrogen and methane. The low concentrations of methanol and carbon monoxide were also determined. ZnS-MMT-CTA was also used for the photooxidation of phenol in its aqueous solutions. ZnS-MMT-CTA exhibited considerably higher efficiency than TiO2 and UV irradiation. The phenol oxidation according to pseudo-first reactions was observed. The gas chromatography and pH measurements suggested that phenol was oxidized

Název v anglickém jazyce

Zinc sulphide nanoparticles for photochemical reactions: reduction of carbon dioxide and oxidation of phenol

Popis výsledku anglicky

ZnS nanoparticles were prepared and deposited on montmorillonite (MMT) in the presence of cetyltrimethylammonium (CTA). Transmission electron microscopy (TEM) proved the formation of nanoparticles with diameters about 5 nm. The nanoparticles were deposited on MMT forming the ZnS-MMT-CTA nanocomposite that was used for the photochemical reactions of CO2 and phenol under UV light. The commercial TiO2 photocatalyst was used for comparison. The photoreduction of CO2 provided a considerably high efficiency that exceeded 5-6 fold the results with TiO2. The main reaction products were hydrogen and methane. The low concentrations of methanol and carbon monoxide were also determined. ZnS-MMT-CTA was also used for the photooxidation of phenol in its aqueous solutions. ZnS-MMT-CTA exhibited considerably higher efficiency than TiO2 and UV irradiation. The phenol oxidation according to pseudo-first reactions was observed. The gas chromatography and pH measurements suggested that phenol was oxidized

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

3rd International Conference NANOCON 2011

ISBN

978-80-87294-27-7

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

298-303

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

21. 9. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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